I get the following error while i run the command byfn sh up I have tried removing all the containers and updated every required version but still the same error

Question

____    _____      _      ____    _____
/ ___|  |_   _|    / \    |  _ \  |_   _|
\___ \    | |     / _ \   | |_) |   | |  
 ___) |   | |    / ___ \  |  _ <    | |  
|____/    |_|   /_/   \_\ |_| \_\   |_|  

Build your first network (BYFN) end-to-end test

Channel name : mychannel
Creating channel...
+ peer channel create -o orderer.example.com:7050 -c mychannel -f ./channel-artifacts/channel.tx --tls true --cafile /opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/ordererOrganizations/example.com/orderers/orderer.example.com/msp/tlscacerts/tlsca.example.com-cert.pem
+ res=0
+ set +x
2019-06-11 16:12:50.764 UTC [channelCmd] InitCmdFactory -> INFO 001 Endorser and orderer connections initialized
2019-06-11 16:12:51.045 UTC [cli.common] readBlock -> INFO 002 Received block: 0
===================== Channel 'mychannel' created =====================

Having all peers join the channel...
+ peer channel join -b mychannel.block
+ res=1
+ set +x

Error: error getting endorser client for channel: endorser client failed to connect to peer0.org1.example.com:7051: failed to create new connection: connection error: desc = "transport: error while dialing: dial tcp: lookup peer0.org1.example.com: Temporary failure in name resolution"
peer0.org1 failed to join the channel, Retry after 3 seconds
+ peer channel join -b mychannel.block
+ res=1
+ set +x
Error: error getting endorser client for channel: endorser client failed to connect to peer0.org1.example.com:7051: failed to create new connection: connection error: desc = "transport: error while dialing: dial tcp: lookup peer0.org1.example.com: Temporary failure in name resolution"
!!!!!!!!!!!!!!! After 10 attempts, peer0.org1 has failed to join channel 'mychannel'  !!!!!!!!!!!!!!!!
========= ERROR !!! FAILED to execute End-2-End Scenario ===========

ERROR !!!! Test failed

Answer 1

Hey @Lelouch! 

The error says that there was a problem in and resolution which means the system couldn't find the node it was trying to connect to. To solve, open the hosts file:

$ gedit /etc/hosts

And add the IP address of the system than contains the channel. Save and exit the file and then run your command. It worked for me.

Comments

which one should i change localhost ip address or debian ip address

---

127.0.0.1    localhost
127.1.1.1    Lelouch

# The following lines are desirable for IPv6 capable hosts
::1     ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

what am i supposed to change here

---

Find the IP address of the system that contains the cli container. In the terminal of the system that has the cli container use the below command:

$ ifconfig

Then open the /etc/hosts file in the system that you are getting this error:

$ gedit /etc/hosts

and then add the IP address in that file.

---

This was supposed to be done like this

127.0.0.1    localhost 
127.1.1.1    Lelouch

# The following lines are desirable for IPv6 capable hosts 
::1     ip6-localhost ip6-loopback 
fe00::0 ip6-localnet 
ff00::0 ip6-mcastprefix 
ff02::1 ip6-allnodes 
ff02::2 ip6-allrouters

<your_public_ip> <your_username> 
#so for example:
#192.168.0.189 smahara
 

<your_public_ip> <your_username>

# so for example:

#192.168.0.19 smahara

Answer 2

Not sure if this is still relevant to you, but cleaning up and restarting docker worked for me.

$./byfn.sh down
$docker volume prune
$sudo systemctl daemon-reload
$sudo systemctl restart docker
$cd <path of download>/fabric-samples/first-network
$./byfn.sh generate
$./byfn.sh up